/* styles.css */
body {

    font-family: Arial, sans-serif;  
         margin: 0;  
          padding: 0;   
         background-color: #f4f4f4;
                        /* 设置页面背景色为浅灰色 */
}
    .container { 
           max-width: 600px; 
              margin: 0 auto; 
                 padding: 20px;
                 background-color: rgb(197, 220, 239);
         /* 设置容器背景色为白色 */ 
           border: 1px solid #a2b511; 
       /* 添加边框 */ 
          border-radius: 5px; 
/* 可选：添加边角圆润效果 */
   box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); 
/* 可选：添加阴影效果 */
 }
    #todo-list li {  
          list-style-type: none; 
             padding: 10px;
                 border-bottom: 1px solid #ddd;
                }
    #todo-list li:last-child { 
           border-bottom: none;
        }
    .completed { 
           text-decoration: line-through;  
             color: #777;
            }
           